As a young girl, Miu is entranced by the piano and starts taking lessons. In middle school, she's known for her shy and reserved demeanor, lacking self-assurance despite her friends' kind descriptions. While praised for her piano skills, Miu doubts her own abilities, feeling disconnected from the music she plays. Her teacher, Mr. Shirakawa, senses her lack of passion. Alongside grappling with her musical journey, Miu navigates the complexities of adolescence, quietly admiring Kazuya Takahashi, who remains oblivious to her feelings. Through Miu's narrative unfolds a tale of self-discovery, as she seeks to find the melody within her heart and the bravery to share it with the world.